El Cajon Valley High School (ECVHS) is a comprehensive public secondary school in El Cajon, California. It serves students in grades 9-12. Established in 1955, El Cajon Valley is the third of twelve high schools to be built in the Grossmont Union High School District. ECVHS students and athletic teams are known as the Braves. The school is accredited by the Western Association of Schools and Colleges (WASC).